Shade holder



Patented June 12, T1923.

CHARLES STANLEY MALLETT, 0F TORONTO, ONTARIO, CANADA.

SHADE HOLDER.

Application filed November 22, 1921. Serial No. 517,039.

To all whom it may concern:

Be it known that I. CrmnLns STANLEY MALmtTT, a subject of the King of Great Britain, and resident of the city of Toronto, in the county of York, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Shade Holders, of which the following is the specification.

My invention relates to improvements in shade holders and methods of making the same for attachment to the sockets of electric lamps and the object of the invention is to devise a shade holder which will be more simple, less expensive and more rigid than those at present in use.

My invention consists of a shade holder constructed and arranged substantially as hereinafter more particularly described and illustrated in the accompanying drawing in which: I

Fig. 1 represents a perspective View of my shade holder showing the same applied to a lamp socket.

Fig. 2 is an elevational view of the unfinished shade holder showing the method of stamping out the blank.

Fig. 3 is a plan view of the blank used, and

Fig. 4e is a cross sectional view through one of the arms of the shade holder.

Like characters of reference indicate corresponding parts in the different views.

1 is a lamp socket provided with the usual circumferential ridge 2. 3 is an annular open ring of my shade holder provided with the inwardly turned top and bottom d, the ends 5 of the ring being turned outwardly to constitute opposed lugs 5 through which the screw 6 is threaded. 7 are outwardly extending radial arms provided with depending portions 8 through which the shade engaging screws 9 are threaded.

10 are longitudinal conveXed ridges formed on the arms and 11 are convexed humps extending over the corner junctions between the arms and the depending portions, said ridges l0 and the humps 11 constituting reinforcements for the arms and depending portions and preventing any flexibility therebetween.

Having now described my shade holder I- will describe the method of constructing the same in so far as it relates to the present invention.

The shade holder is constructed from the blank shown in Figure 3 and by stamping the arms of the blank. shown in Figure into the form shown in Figure 2. It will be seen that these arms are reinforced by the ridges 10 and humps 11 constituted therein. It is the purpose in stamping these ridges 10 and humps to exert a greater blow on the dies than would be ordinarily necessary for stamping out the arms to the form shown. In this manner the metal in the arms and depending portions will be hardened and thus in addition to the reinforcement of such arms due to the shape of the ridges and the humps, the metal being hardened will be less liable to bend.

What I claim as my invention is:

In an electric lamp shade holder, the combination with an electric lamp socket and lamp shade of an annular ring, means for detachably securing the ring to the socket, radially extending arms on the annular ring provided with depending portions, means for detachably securing the shade to the depending portions longitudinally extending conveXed reinforcing ribs formed on the horizontal portions of the arms and convened humps formed at the junction of the horizontal portion of the arms with the depending portions and straddling their junction, the reinforcing ribs being contiguous to the reinforcing humps.

CHARLES STANLEY MALLETT. 

